Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:K2HPO4-2 -- e-Tools Age

	Calculate molar mass
	Enter a chemical formula in the field below, pay attention to formula is case sensitive!!!	The formula should be entered as: H₂SO₄= H2SO4 CuSO₄.5H2O=CuSO4.5H2O 3BeO.Al2O₃.6SiO₂= (BeO)3.Al2O3.6SiO2

Calculations:
Formula: K2HPO4-2
Molar Mass: 172.1739 g/mol        1g=5.80808124808696E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
K                  1.9              39.098                        44.26%
H                  -1                1.0079                        -0.58%
P                  0.9              30.974                        16.83%
O                  3.9              15.999                        36.01%

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